Evaluation of the tricuspid annulus is crucial for the decision making at the time of left heart surgery. Current recommendations for tricuspid valve repair are based on two-dimensional (2D) transthoracic echocardiography (TTE), despite the known underestimation compared with three-dimensional (3D) echocardiography. However, little is known about the differences in 3D tricuspid annular (TA) sizing using TTE versus transesophageal echocardiography (TEE). The aims of this study were to (1) compare 2D and 3D TA measurements performed with both TTE and TEE and (2) compare two 3D methods for TA measurements: multiplanar reconstruction (MPR) and dedicated software (DS) designed to take into account TA nonplanarity.
Volpato V, Lang RM, Yamat M, Veronesi F, Weinert L, Tamborini G, Muratori M, Fusini L, Pepi M, Genovese D, Mor-Avi V, Addetia K. Echocardiographic Assessment of the Tricuspid Annulus: The Effects of the Third Dimension and Measurement Methodology. J Am Soc Echocardiogr 2018 Nov 17. pii: S0894-7317(18)30506-6. doi: 10.1016/j.echo.2018.09.008. [Epub ahead of print]